Hi,
Thanks for the reply and for your ideas.
I use system id and I verify it, it's OK.
I'am programming with the time_limited.sof.
I think like you that It could be a timing problem.
Maybe I don't add a .sdc in my quartus but when I check I have the tse_mac_constraints.sdc.
I made a test, I copy the altera original project and I copy it.
I compile it with quartus to create the time_limited.sof.
I program it and run my own SSS application in NiOS.
And It works.
But If I made any change in my nios (add PIO or rename...) after I can't run my application it always fail at at "INFO : PHY[0.0] - Auto-Negotiation PASSED".
thanks.